Question: Effects of an Outlier Refer to the accompanying scatterplot. a. Examine the pattern of all 10 points and subjectively determine whether there appears to be

Effects of an Outlier Refer to the accompanying scatterplot.

a. Examine the pattern of all 10 points and subjectively determine whether there appears to be a correlation between x and y.

b. After identifying the 10 pairs of coordinates corresponding to the 10 points, find the value of the correlation coefficient r and determine whether there is a linear correlation.

c. Now remove the point with coordinates (10, 10) and repeat parts

(a) and (b).

d. What do you conclude about the possible effect from a single pair of values? y 10 9 8 7 6 5 4 3 2 1 0

y 10 9 8 7 6 5 4 3 2 1 0 01 2 3 4 5 6 7 8 9 10 10 X

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